![]() ![]() ![]() ![]() The range can be from 100 to 180 beats per minute (bpm). This measurement determines the gestational age of your embryo, which then determines your estimated due date (EDD)Ī strong fetal heartbeat can be clearly seen at 7 weeks. The embryo will be measured from crown to rump (CRL). The pelvic region including the uterus and ovaries are scanned, ensuring there is no other pathology that could affect your pregnancy and its outcome. The combination is important to determine if you are carrying identical or non-identical twins, or if there is a triplet pregnancy. A multiple pregnancy including twins, triplets etc, may include a single gestational sac with two embryos within, or two gestational sacs with an embryo in each. A single pregnancy has one gestational sac with a single embryo inside. The number of gestational sacs is counted, as well as the number of embryos in each sac. The Sonographer will do a quick survey scan to confirm the gestational sac with the embryo is in the uterus, and will confirm a heartbeat is seen. These reasons are important when confirming the gestational age of your embryo. This information helps such as if you were breastfeeding at time of conception, recently stopped using the oral contraceptive pill, and if there has been any bleeding or spotting. Please don’t hesitate to let the Sonographer know if there is any other information relevant to your pregnancy. If you had miscarriages, how far along were you?.How many pregnancies have you had? What were the outcomes?.Is this is a naturally conceived pregnancy? Or IVF?.When was your last menstrual period (LMP)?.The Sonographer will ask you a few questions to get a relevant history from you. This is done with a small transducer placed into the vagina with an empty bladder. not a bursting bladder!Ī good tip is to empty your bladder and have 2 glasses of water, approximately 500-600mls an hour before your appointment.īoth a transabdominal and transvaginal ultrasound will be performed, and both are safe throughout your pregnancy.Ī transabdominal ultrasound is scanning over your abdomen, and in the early weeks of your pregnancy, under 10 weeks the most accurate way to perform the scan is transvaginally. So being prepared for the ultrasound will require you to have a full bladder…. Determine viability, confirm a heartbeatĪ Sonographer will perform the ultrasound.Determine your estimated due date (EDD).The first scan in your pregnancy is commonly known as the dating scan, and is usually done in the first trimester at around 7 weeks. As soon as I see a heartbeat I silently start breathing with relief and let them know that a heartbeat is seen. Each time I walk a patient into my scanning room, my fingers and toes are crossed quietly praying all will be well for my lovely patient. I can assure you, the Sonographer is feeling exactly the same way. From excitement, to worry, hoping everything is ok. Walking into the ultrasound room, you will be full of mixed emotions. Congratulations, you have found out you are pregnant, and the first scan in your pregnancy should be an exciting time. ![]()
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